On Apple's American website, this hasn't affected prices. But UK customers could be in for a shock if they were holding off on purchasing goods in the hope of a reduction.

The iPhone 7 is the most obvious offender. The cheapest version of the 6s retailed for £539; its successor, the 32GB iPhone 7, goes for £599 ($649 in the US, then and now). Meanwhile, the highest-end model, with 256GB of storage, is £919 — £100 more than its predecessor.

The 12.9-inch iPad Pro, meanwhile, already had a minimum storage option of 32GB. That now starts from £729, up from £679. (In the US? $799.)

The Apple Pencil, a stylus accessory for the iPad, is now £99 (previously £79).

What's behind this UK-only price increase? An Apple spokesperson told Business Insider that "Apple suggests product prices internationally on the basis of several factors, including currency exchange rates, local import laws, business practices, taxes, and the cost of doing business. These factors vary from region to region and over time, such that international prices are not always comparable to US suggested retail prices."

This smention of currency exchange rates suggests that it could be down to the fall in the value of the pound in the aftermath of the Brexit vote. Apple does its accounting in dollars, so may have been forced to put up its prices to compensate for this.

The iPhone 7 is a largely incremental upgrade on its predecessor, the iPhone 6s. Major changes include a better camera, water resistance, and the controversial removal of the headphone jack. Instead, customers are forced to use wireless headphones or plug in their headphones to the Lightning port via the adaptor — something that will prevent them from charging their device and listening to music at the same time.

The Lightning connection on the Apple iPhone 7 is shown on display during an Apple media event in San Francisco, California, U.S. September 7, 2016.
REUTERS/Beck Diefenbach